Structural Health Monitoring for a Large Industrial Facility
Published on by Toni Abrahams
Survey Solutions was commissioned to deliver a comprehensive structural health monitoring programme at a large industrial facility, assessing beam deflection under live occupancy loading.
The development combined multi-level office accommodation with operational storage and logistics areas, with expected occupancy of more than 140 people. Continuous monitoring was required to confirm the structure was performing as designed during normal operations.
The Challenge
Understanding how a structure responds to live loading is vital to maintaining safety and performance. The client needed accurate, long-term monitoring to verify beam deflection across two occupied office floors.
The installation presented several practical challenges. Equipment had to be fitted outside normal working hours to minimise disruption, while sensors needed to be installed on steel beams hidden above suspended ceilings and around building services. The large volume of monitoring data also required careful analysis to identify meaningful structural trends.
Our Approach
A structural health monitoring system was designed and installed beneath both office levels, using twenty-six tilt sensors and four vibration sensors arranged in software-defined monitoring chains.
Over three months, the system continuously recorded structural movement and generated six deflection profiles every 15 minutes. This high-frequency monitoring created a detailed dataset, enabling engineers to assess how the steel frame performed under changing occupancy and operational loads.
After installation, the data was reviewed and analysed to identify movement patterns, assess structural performance, and confirm whether the building behaved in line with its design expectations.
The Outcome
The monitoring programme revealed clear, repeatable deflection patterns linked to changes in occupancy and daily operational loading.
Ground floorbeams showed gradual positive deflection as occupancy increased, while first floor beams showed predictable negative deflection during peak use. Throughout the monitoring period, recorded movements remained consistent, with no unexpected or abnormal structural behaviour.
The project confirmed that the steel frame was responding as expected under operational loading, giving the client confidence that the structure remained stable and within acceptable design tolerances.
